8 results on '"Kovalick, Tamara"'
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2. Parker Solar Probe In-Situ Data at the SPDF Archives
- Author
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Candey, Robert, primary, Bilitza, Dieter, additional, Chimiak, Reine, additional, Cooper, John, additional, Garcia, Leonard, additional, Gladney, Codie, additional, Harris, Bernard, additional, Jian, Lan, additional, Johnson, Rita, additional, Kovalick, Tamara, additional, Lal, Nand, additional, Leckner, Howard, additional, Liu, Michael, additional, McGuire, Robert, additional, Papitashvili, Natalia, additional, Rao, Uthra, additional, Roberts, D Aaron, additional, and Yurow, Ronald, additional
- Published
- 2020
- Full Text
- View/download PDF
3. Space Weathering Investigations Enabled by NASA's Virtual Heliophysical Observatories
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Cooper, John F, King, Joseph H, Papitashvili, Natalia E, Lal, Nand, Sittler, Edward C, Sturner, Steven J, Hills, Howard K, Lipatov, Alexander S, Kovalick, Tamara J, Johnson, Rita C, McGuire, Robert E, Narock, Thomas W, Szabo, Adam, Armstrong, Thomas P, Manweiler, Jerry W, Patterson, J. Douglas, and McKibben, Robert B
- Subjects
Solar Physics - Abstract
Structural and chemical impact of the heliospheric space environment on exposed planetary surfaces and interplanetary dust grains may be generally defined as space weathering . In the inner solar system, from the asteroid belt inwards towards the Sun, the surface regolith structures of airless bodies are primarily determined by cumulative meteoritic impacts over billions of years, but the molecular composition to meters in depth can be substantially modified by irradiation effects. Plasma ions at eV to keV energies may both erode uppermost surfaces by sputtering, and implant or locally produce exogenic material, e.g. He-3 and H2O, while more energetic ions drive molecular change through electronic ionization. Galactic cosmic ray ions and more energetic solar ions can impact chemistry to meters in depth. High energy cosmic ray interactions produce showers of secondary particles and energetic photons that present hazards for robotic and human exploration missions but also enable detection of potentially useable resources such as water ice, oxygen, and many other elements. Surface sputtering also makes ejected elemental and molecular species accessible for in-situ compositional analysis by spacecraft with ion and neutral mass spectrometers. Modeling of relative impacts for these various space weathering processes requires knowledge of the incident species-resolved ion flux spectra at plasma to cosmic ray energies and as integrated over varying time scales. Although the main drivers for investigations of these processes come from NASA's planetary science and human exploration programs, the NASA heliophysics program provides the requisite data measurement and modeling resources to enable specification of the field & plasma and energetic particle irradiation environments for application to space weather and surface weathering investigations. The Virtual Heliospheric Observatory (VHO), Virtual Energetic Particle Observatory (VEPO), Lunar Solar Origins Exploration (LunaSOX), and Space Physics Data Facility (SPDF) services now provide a wide range of inner heliospheric spacecraft data that can be applied to space weathering of potential exploration destinations including the Moon, asteroids, and the moons of Mars, as well to radiation hazard assessment for the spacecraft and human explorers. For example, the new VEPO service for time-averaging of multi-source ion flux spectra enables the specification of composite flux spectra from a variety of ongoing and legacy missions for applications to surface interaction modeling. Apollo to Artemis data resources of LunaSOX enable specific space weathering investigations for the Moon, while VHO more generally covers the space field and plasma environments of the inner and outer solar system from the sunward-most perihelia of the twin Helios spacecraft to the ongoing heliosheath passages of the twin Voyagers. Composite multi-source spectra from VEPO can also be applied to the continuing compilation of accumulated 1-AU fluence spectra, mostly contributed by solar wind plasma and energetic particle events, for determination of time-averaged particle compositional and kinetic energy output from the Sun and for modeling of long-term irradiation impacts on planetary surfaces.
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- 2012
4. Science Enabling Roles and Services of SPDF
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McGuire, Robert E, Bilitza, Dieter, Candey, Robert M, Chimiak, Reine A, Cooper, John F, Garcia, Leonard N, Harris, Bernard T, Johnson, Rita C, King, Joseph H, Kovalick, Tamara J, Lal, Nand, Leckner, Howard A, Liu, Michael H, Papitashvili, Natalia E, and Roberts, D. Aaron
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Mathematical And Computer Sciences (General) - Abstract
The current Heliophysics Science Data Management Policy defines the roles of the Space Physics Data Facility (SPDF) project as a heliophysics active Final Archive, a focus for critical data infrastructure services and a center of excellence for data and ancillary information services. This presentation will highlight some of our current activities and our understanding of why and how our services are useful to researchers, as well as SPDF's programmatic emphasis in the coming year. We will discuss how. in cooperation with the Heliophysics Virtual discipline Observatories (VxOs), we are working closely with the RBSP and MMS mission teams to support their decisions to use CDF as a primary format for their public data products, to leverage the ongoing data flows and capabilities of CDAWeb (directly and through external clients such as Autoplot) to serve their data in a multi-mission context and to use SSCWeb to assist community science planning and analysis. Among other current activities, we will also discuss and demonstrate our continuing effort to make the Virtual Space Physics Observatory (VSPO) service comprehensive in all significant and NASA relevant heliophysics data. The OMNI and OMNI High Resolution datasets remain current and heavily cited in publications. We are expanding our FTP file services to include online archived non-CDF data from all active missions, which is a re-hosting of this function from NSSDC's FTP site. We have extended the definitions of time in CDF to unambiguously and consistently handle leap seconds. We are improving SSCWeb for much faster per1ormance, more capabilities and a web services inter1ace to Query functionality. We will also review how CDAWeb data can be easily accessed within IDL and new features in CDAWeb.
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- 2011
5. Services, Perspective and Directions of the Space Physics Data Facility
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McGuire, Robert E, Bilitza, Dieter, Candey, Reine A, Chimiak, Reine A, Cooper, John F, Fung, Shing F, Harris, Bernard T, Johnson, Rita C, King, Joseph H, Kovalick, Tamara, Leckner, Howard A, Liu, Michael H, Papitashvili, Natalia E, and Roberts, D. Aaron
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Solar Physics - Abstract
The multi-mission data and orbit services of NASA's Space Physics Data Facility (SPDF) project offer unique capabilities supporting science of the Heliophysics Great Observatory and that are highly complementary to other services now evolving in the international heliophysics data environment. The VSPO (Virtual Space Physics Observatory) service is an active portal to a wide rage of distributed data sources. CDAWeb (Coordinated Data Analysis Web) offers plots, listings and file downloads for current data from many missions across the boundaries of missions and instrument types. CDAWeb now includes extensive new data from STEREO and THEMIS, plus new ROCSAT IPEI data, the latest data from all four TIMED instruments and high-resolution data from all DE-2 experiments. SSCWeb, Helioweb and out 3D Animated Orbit Viewer (TIPSOD) provide position data and identification of spacecraft and ground conjunctions. OMNI Web, with its new extension to 1- and 5-minute resolution, provides interplanetary parameters at the Earth's bow shock. SPDF maintains NASA's CDF (Common Data Format) standard and a range of associated tools including format translation services. These capabilities are all now available through web services based APIs, one element in SPDF's ongoing work to enable heliophysics community development of Virtual discipline Observatories (e.g. VITMO). We will demonstrate out latest data and capabilities, review the lessons we continue to learn in what science users need and value in this class of services, and discuss out current thinking to the future role and appropriate focus of the SPDF effort in the evolving and increasingly distributed heliophysics data environment.
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- 2008
6. Importance of Heliophysics standards and metadata guidelines for effective data analysis
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Candey, Robert, primary, Harris, Bernard, additional, Kessel, Ramona, additional, Kovalick, Tamara, additional, Liu, Michael, additional, McGuire, Robert, additional, and Roberts, D Aaron, additional
- Published
- 2019
- Full Text
- View/download PDF
7. Space weathering investigations enabled by NASA's virtual heliophysical observatories
- Author
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Cooper, John F., primary, King, Joseph H., additional, Papitashvili, Natalia E., additional, Lal, Nand, additional, Sittler, Edward C., additional, Sturner, Steven J., additional, Hills, H. Kent, additional, Lipatov, Alexander S., additional, Kovalick, Tamara J., additional, Johnson, Rita C., additional, Leckner, Howard A., additional, McGuire, Robert E., additional, Narock, Thomas W., additional, Szabo, Adam, additional, Roberts, D. Aaron, additional, Armstrong, Thomas P., additional, Manweileri, Jerry W., additional, Patterson, J. Douglas, additional, McKibben, Robert B., additional, and Tranquille, Cecil, additional
- Published
- 2012
- Full Text
- View/download PDF
8. Space weathering investigations enabled by NASA's virtual heliophysical observatories.
- Author
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Cooper, John F., King, Joseph H., Papitashvili, Natalia E., Lal, Nand, Sittler, Edward C., Sturner, Steven J., Hills, H. Kent, Lipatov, Alexander S., Kovalick, Tamara J., Johnson, Rita C., Leckner, Howard A., McGuire, Robert E., Narock, Thomas W., Szabo, Adam, Roberts, D. Aaron, Armstrong, Thomas P., Manweileri, Jerry W., Patterson, J. Douglas, McKibben, Robert B., and Tranquille, Cecil
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WEATHERING ,ASTRONOMICAL observatories ,SOLAR energetic particles ,PLASMA gases ,SPACE vehicles - Abstract
Space weathering by the plasma and energetic particle radiation environment of the heliosphere contributes to the physical and chemical evolution of exposed surfaces on airless bodies such as the Moon, asteroids, comets, and icy bodies of the outer solar system. The Multi-Source Spectral Plot (MSSP) service of the NASA Virtual Energetic Particle Observatory (VEPO) enables enhanced access and comparative global heliospheric analysis of ion flux spectra from the past and present fleet of interplanetary spacecraft for modeling of space weathering effects. Commonly red colors of low-inclination Classical Kuiper Belt Objects may be the result of specific compositional origin and spectral irradiation effects in the outer heliosphere. VEPO also enables easy comparison of flux spectra to check intercalibration issues. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
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